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what value for Fy are the two forces F1=4i+Fyj+20K(N) and F2=8i-5j+7k(N) perpendicular to each other?
Rod AB is bent into the shape of a circular arc and is lodged between two pegs D and E. It supports a load P at end B. Neglecting friction and the weight of the rod, determine the distance c corresponding to equilibrium when a = 43mm and R = 143mm..
A cylindrical sample of soil 39 mm in diameter and 77 mm long weighed 180 g. The sample is not fully saturated and its moisture content was found to be 27.0%. Assume rS = 2.70 Mg/m3. Determine: a. the bulk density, r b. the dry density, rd c. the d..
A slurry containing 20 percent by weight of limestone (CaCO3) is processes to separate pure dry limestone from water. If feed rate is 2000kg/h, how much CaCO3 is produced per hour?
After compaction the void ratio is reduced to 0.60. Determine: (a) Dry and moist unit weights before and after compaction (b) Degree of saturation after compaction.
An asphalt concrete mixture includes 94% aggregate by weight. The specific gravities of aggregate and asphalt are 2.65 and 1.0, respectively. If the bulk density of themix is 147 pcf, what is the percent voids in the total mix
Air pollution in a city is caused by the following four sources: vehicle exhaust (V), industrial exhaust (I), dust (D), and pollen from plants and trees (T). On a particular day, the likelihood of air pollution caused by these sources is 4:3:2:1, ..
An object has a mass of 46kg and weighs 450N on a spring scale. Determine the acceleration due to gravity at this location.
the circular top of a can has a radius of .0320m. the pull-tab has an area of 3.8x10^-4 m^2. the absolute pressure of the carbon dioxide in the can is 1.40x10^5Pa. find the force that these gas generates on the top of a can?
The supplier says it would prefer to sell the company a 65% NaOH solution and the company says the water content is immaterial as long as the equivalent costs are the same including freight.
Find the total mass, quality of steam, specific volume, specific enthalpy, and specific internal energy.
Because of the insulation between them, the sun heats up the wall panel 120 degrees F but the column to 80 degrees F. Determine the consequent compressive stress in the curtain wall.
Explain about pres-stressed concrete
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